I have lots of Tapo switches, plugs, bulbs and sensors, recently some light switches and Motion sensors have become very slow to respond to the Tapo app on my iPad, but still react well to voice commands via Alexa 

Everything in my setup has latest software installed.

Everything has a good Wi-Fi connection (green bars in app on everything and an excellent rssi signal)

All apps removed and reinstalled.

Router rebooted dozens of times, all Wi-Fi settings checked and are optimal, tried other channels.

I reset my Tapo hub and reinstalled all my switches and sensors, problem remains.

Added  a second Tapo hub and split all my stuff, hub 1 has 20 connected devices, hub 2 has 13 connected devices, problem remains.

So, when thing go slow which is only a few hours after rebooting everything, the hubs will not ring from the Tapo app, and the only way to get my switches to respond quickly again, AND get the Tapo hubs to ring again is to power cycle the Tapo hubs.

Any suggestions welcome 

regards,

John